JPH10184868A - Shift lever shift lock device - Google Patents

Abstract

(57) [Problem] To provide a highly reliable shift lock device having a simple structure. SOLUTION: A longitudinal rocking body 6 is rotatably supported in a body 2 fixed to a vehicle body 1 so as to be rotatable in the vehicle longitudinal direction.
A gate formed on the upper surface of the housing 2 by pivotally supporting the swing base 3 so as to be rotatable in the lateral direction of the vehicle body and swinging a shift lever 7 implanted in the swing base 3 in the longitudinal and lateral directions of the vehicle body. In the shift lever device for moving the section 8 to select a desired range and switch the automatic transmission, the swing base 3
A pair of rotations having a pair of vertically protruding projections 15 and 16, and a P locking portion 24 that can abut one projection 15 and an N locking portion 25 that can abut the other projection 16. A lock body 19 is rotatably supported by the housing 2, and an actuator 22 that rotates the rotation lock body 19 when the shift lever 7 moves to the P range or the N range is fixed to the housing 2. Was configured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shift lock device for a shift lever for switching an automatic transmission in an automobile, and more particularly to a highly simple shift lock device with a simple mechanism.

[0002]

2. Description of the Related Art A shift lever device for performing a switching operation of an automatic transmission locks a shift from a P range or an N range to an R range while a gate type multi-stage shift specification tends to spread. Thus, a mechanism for preventing an inadvertent switching operation of the automatic transmission is provided (Japanese Patent Laid-Open No.
-119813).

In the first embodiment of the present invention, a P-locking portion and an N-lock which advance and retreat within a range of a P range and an N range at a gate of a shift lever capable of swinging in a vehicle longitudinal direction and a vehicle lateral direction are disclosed. A stopper having a portion has a V-shape that swings in the front-rear direction of the vehicle body, and the stopper is rotated by a solenoid (actuator) that operates when a vehicle brake operation or a set speed is reached, thereby locking the shift lock. It is to do.

Further, in the second embodiment, the stopper has a two-piece link structure so that the P-locking portion and the N-locking portion move toward or away from each other. The disadvantage caused by the P locking portion and the N locking portion moving in the same direction is solved.

[0005]

However, according to the first embodiment, according to the first embodiment, the solenoid is always actuated during running of the vehicle, the N locking portion of the stopper is in the N range, and the N range shift lock is in place. Therefore, there is a drawback that the reliability is low due to a failure or the like, and it is impossible to lock when the electric system fails. Further, in the second embodiment, although the above-mentioned problem of the first embodiment is solved by using two stoppers, there is a disadvantage that the number of parts increases and the operation accuracy deteriorates.

In view of the above circumstances, the present invention provides a highly reliable shift lock device having a simple structure.

[0007]

A shift lock device for a shift lever according to the present invention pivotally supports a longitudinal rocking body in a casing fixed to a vehicle body so as to be rotatable in the vehicle longitudinal direction. The moving base is rotatably supported in the lateral direction of the vehicle body,
A shift lever device that swings a shift lever implanted in the swing base in the longitudinal and lateral directions of the vehicle body, moves a gate formed on the upper surface of the housing, selects a desired range, and switches an automatic transmission. A rotary lock having a pair of vertically spaced projections provided on the swing base and having a P engagement portion capable of contacting one of the projections and an N engagement portion capable of contacting the other of the projections. An actuator for rotatably supporting a body on the housing and rotating the rotation lock body when the shift lever is moved to the P range or the N range is fixed to the housing.

Accordingly, when the shift lever is moved to the P range, a sensor that detects the shift lever turns off the actuator to rotate the rotary lock body to the lock position, and the P locking portion of the shift base of the shift lever pivots. By contacting one of the protrusions, the rotation of the shift lever is restricted, and the shift lock in the P range is performed.

When the ignition key is turned on and the brake is depressed, the power is turned on and the actuator is actuated, so that the P locking portion is separated from the projection and the shift lever can be moved to the travel range.

When the shift lever is rotated to reach the set vehicle speed while the vehicle is traveling in the D range, the actuator is turned off by the vehicle speed detection sensor, and the rotation lock body is rotated to the lock position and locked at the N position. The portion abuts on the other protrusion of the pivot base to perform R inhibit.

When the vehicle speed falls below the set value, the vehicle speed detection sensor turns on the actuator, the rotation lock body rotates to the unlock position, and the N locking portion separates from the other projection, so that the shift lever is moved. You can move freely to the required range.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, a swing base 3 is rotatably supported on a housing 2 fixed to the vehicle body 1 by a shaft 4 in the vehicle body front-rear direction and by a shaft 5 in the vehicle body left-right direction. The shaft 4 is formed integrally with the front-rear swinging body 6 and is formed integrally with the bracket 2 c at the lower portion of the housing 2.
It is supported by The front and rear swing body 6 has a lever portion 6a.
Is extended downwardly of the vehicle body and integrally connected, and a transmission operation rod or a cable is connected to a lower end of the lever portion 6a.

A shift lever 7 is mounted on the swing base 3 in the axial direction. The shift lever 7 slides on the upper portion of the housing 2 through a gate portion 8 formed on the upper portion of the housing 2 in the front-rear direction of the vehicle body. A protruding slide hole 9 protrudes at a predetermined height from a guide hole formed in a zigzag shape on an upper surface of an indicator 10 fixed on the slide plate 9 and an upper portion thereof, and a knob 11 is attached to an upper end thereof. .

A restricting plate 12 is formed integrally with the front-rear swinging member 6, and an upper end surface of the restricting plate 12 forms an arc of a predetermined radius centered on the shaft 4, and has P, R on its end surface. , N, D, 1, 2, etc., a semi-circular moderation groove 13 corresponding to the number of shift ranges is formed. This moderation groove 1
An elastic body 14 having a substantially circular cross-section and having one end having a substantially circular cross-section and engaging with the elastic member 3 is supported at the other end in the housing 2 by the side wall 2a.

Therefore, when the user shifts the shift lever 7 to a specific shift range while swinging the shift lever 7 in the longitudinal and lateral directions of the vehicle body by grasping the knob 11, the swing base 3
5, the regulating plate 12 rotates together with the front and rear rocking body 6, and the moderation groove 13 moves by pressing the elastic body 14 to remove the pressing force. The section 6a operates the transmission operating rod or cable to switch the automatic transmission to the set shift range.

In order to lock the shift lever 7 to the R range in the P range and the N range, FIGS.
As shown in FIG. 3, the swing base 3 is provided with a pair of protrusions 15 and 16 which are vertically separated from each other, and a P lock portion 24 and an N lock portion 25 which can abut these protrusions 15 and 16.
Are supported on one side wall 2 a side of the housing 2. The projections 15 and 16 are formed integrally with the swing base 3, and as shown in FIG.
It is arranged on the upper portion of the swing base 3 so as to be able to contact the locking portion 24,
The protrusion 16 is disposed at a substantially intermediate portion of the swing base 3 so as to be able to contact the N locking portion 25.

As shown in FIG. 1, the rotation lock body 19
A substantially Z-shaped notch 2b is opened in one side wall 2a of the housing 3, and a support plate 20 is fixed to the outside of the side wall 2a of the housing 3 so as to cover the notch 2b as shown in FIG. , The support plate 2
The shaft 21 is rotatably supported by a shaft projection 21 protruding therefrom.
The shaft protrusion 21 is disposed between the pair of protrusions 15 and 16 so as to protrude from the side wall 2a. An actuator 22 for driving the rotation lock body 19 to rotate as required is fixed to the support plate 20. Actuator 22
Is provided with a plunger 23 that can be retracted when energized.

The rotation lock body 19 is a lever in which a P locking portion 24 and an N locking portion 25 are integrally formed at both ends, and as shown in FIG. It has a pair of L-shaped ends 17 and 18 formed point-symmetrically with respect to the shaft hole 31, and tapered portions 26 and 27 formed toward the shaft hole 31 along the ends 17 and 18. A tubular portion 29 is formed in an extending portion 28 provided and formed in the upper side of the axial hole 31 in the axial direction, and a plunger engaging hole 30 having a substantially elliptical cross section is formed in the tubular portion 29. A plunger 23 of the actuator 22 is engaged with a perpendicularly bent distal end portion of the plunger 23 in the plunger engagement hole 30.

Further, the P locking portions 2 of the L-shaped ends 17, 18 are provided.
Stoppers 17a and 18a are formed on the back surfaces of the 4 and N locking portions 25, respectively.
Reference numeral 18a is formed parallel to the P locking portion 24 and the N locking portion 25, respectively. These stopper portions 17a, 18a
Is rotated within the notch 2b of the side wall 2a, and when the rotation lock body 19 is at the lock position, the stoppers 17a and 18a can abut on the step end surfaces 2d and 2e of the notch 2b, respectively. is there. When the rotation lock body 19 is at the unlock position, the tapered portions 26 and 27 are horizontal, and the pair of protrusions 15 and 16 move up and down along the tapered portions 26 and 27.

Therefore, when the shift lever 7 is set to move to the P range, the switch (not shown) electrically detects that the swing base 3 has moved to the P range, and in this state, the actuator 22 is energized. The plunger 23 is protruded by the force of the built-in spring to rotate the rotation lock body 19, and as shown by the solid line in FIG. The rotation of the shift lever 7 in the rearward direction is prevented, and the shift lock in the P range is performed.

If the shift lever 7 is forcibly moved in the locked state, the rotation lock 1
9 stops the rotation lock body 19 by contacting the stopper portion 17a with the step end surface 2d of the cutout portion 2b. Thus, a load that attempts to move the shift lever 7 is input to the housing 2 from the projection 15 via the rotation lock body 19, and thus can be prevented from being input to the shaft projection 21 and the actuator 22.

Next, when the actuator is energized by depressing the brake in a state where the ignition switch is turned on and the engine is started for running the vehicle, the plunger 23 is turned on as shown by a virtual line in FIG. The rotation lock body 19 is pulled in against the force of the built-in spring.
Is rotated in the counterclockwise direction.
5 can move to the rear side of the vehicle body, that is, to the R range and the N range side by passing over the tapered portion 26 of the rotation lock body 19. Therefore, the vehicle travels with the shift lever 7 moved to the D range.

When the vehicle running speed becomes equal to or higher than the set value, the energization of the actuator 22 is cut off, the plunger 23 projects again, and the rotary lock body 19 returns to the locked state again, as shown in FIG. The N locking portion 25 rotates to a position where it can come into contact with the projection 16 of the swing base 3 and stops. Therefore, even if the shift lever 7 is erroneously shifted to the R range, the projection 16 of the swing base 3 does not come into contact with the N locking portion 25 to rotate in the forward direction. The shift of the lever 7 to the N range is prevented.

In the locked state, if the shift lever 7 is forcibly moved to the R range,
The stopper portion 18a of the rotation lock body 19 abuts on the step end surface 2e of the notch 2b to prevent the rotation lock body 19 from rotating. As a result, a load for moving the shift lever 7 is input from the protrusion 16 to the housing 2 via the rotation lock body 19, so that the shaft protrusion 21 and the actuator 22
Can be prevented.

When the vehicle traveling speed becomes equal to or lower than the set value, the actuator 22 is energized again, whereby the plunger 23 is retracted, the rotation lock body 19 is rotated to the unlock position, and the projection 16 is tapered. 27, the shift lever 7 can be moved to the R range or the P range.

That is, according to the first embodiment of the present invention, the rotation lock body 19 is compact and has a narrow operating space, and the load input from the shift lever 7 via the rotation lock body 19 is Input to the side wall 2a,
Since there is no input to the shaft projection 21 and the actuator 22, there is no need to mold with a high-strength member, the weight can be reduced, the reliability is improved, and the position of the shift lock is assured. Further, since the shift lever 7 has a structure for restricting the forward / backward movement of the shift lever 7, it can be used not only as a gate type shift lever device but also as a shift lock device in a straight type shift lever device which does not swing in the left and right direction of the vehicle body. Can also.

Next, a second embodiment of the present invention will be described with reference to FIG.
12 will be described. In this example, the rotation lock body 19
a is a plate-like shape and a cylindrical P-locking portion 17
The shaft 34 is integrally formed on the back surface side with the N locking portion 18a. A pair of columnar projections 15a and 16a are also integrally formed on the swing base 3a and are vertically separated from each other. The shaft 34 is rotatably supported by being inserted into a shaft hole formed in the side wall 2 a of the housing 2. And actuator 2
The tip of the plunger 23 bent at a right angle is the housing 2
Enters the inside of the housing 2 through the elongated hole formed in the side wall 2a of the
A through-hole is formed in the rotation locking body 19a on the side of the P locking portion 17a, and inserted into the through-hole.

A hollow cylindrical body 35 is formed integrally with the swing base 3a in place of the regulating plate 12, and the hollow cylindrical body 3
5, a coil spring is inserted, a ball protruding by its elasticity is inserted, and a moderating plate having a cross-sectional waveform against which the ball is pressed is provided in the housing 2. Other configurations are the same as those of the first embodiment. Therefore, in the second embodiment, the shift in the R range is prevented by restricting the shift of the shift lever 7 in the left and right directions in the P range and the N range. , 16a via the rotation lock body 19 to the side wall 2a, it is possible to prevent a load from being input to the shaft 34 and the actuator 22. Other operations are the same as those of the first embodiment. In the second embodiment, the rotary lock body 19a and its swing base 3 have a very simple structure as compared with the first embodiment, so that the size and cost are further reduced.

As described above, the P range shift lock and the N range shift lock are always performed when the actuator is de-energized, so that the load on the actuator 22 is reduced. Since the operating force is small enough, the size can be reduced.

[0030]

According to the present invention described above, the P-range shift lock or the N-range shift lock is performed by rotating the rotation lock body when the actuator is de-energized, so that the load on the actuator can be reduced and the rotation can be reduced. Since the lock body is compact and has a small moving space, the number of parts is small, the operating force of the actuator can be reduced, and the size and cost of the shift lock device can be reduced. Furthermore, since the load input from the shift lever via the rotation lock body is input to the side wall of the housing and is not input to the shaft of the rotation lock body or the actuator, the rotation lock body and its shaft are made of a high-strength member. No need to mold,
The size and weight can be reduced, the reliability thereof is improved, and the shift lock is ensured.

[Brief description of the drawings]

FIG. 1 is a side view showing a first embodiment of the present invention;

FIG. 2 is a sectional front view of FIG. 1;

FIG. 3 is a sectional plan view of a main part of FIG. 1;

FIG. 4 is a side view (A), a plan view (B), and a front view (C) of a shift lever and a swing base.

FIG. 5 is a perspective view of a rotation lock body.

FIG. 6 is a front view of FIG. 5;

FIG. 7 is a plan view of FIG. 5;

FIG. 8 is a side view of FIG. 5;

FIG. 9 is a diagram illustrating the operation of a P range shift lock.

FIG. 10 is an explanatory diagram of an operation of an N range shift lock.

FIG. 11 is a partially omitted side view showing a second embodiment of the present invention.

FIG. 12 is a perspective view of a main part of FIG. 11;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Body 2 ... Case 2a ... Side wall 2b ... Notch part 3 ... Swing base part 4 ... Shaft 7 ... Shift lever 8 ... Gate part 10 ... Guide hole 15, 16, 15a, 16a ... Projection part 17, 18 ... End part 19, 19a ... rotation lock body 22 ... actuator 23 ... plunger 24, 24a ... P locking part 25, 25a ... N locking part 26, 27 ... taper part 30 ... plunger engagement hole

Claims (3)

[Claims] 1. A front-rear swinging body is rotatably supported in a front-rear direction of a vehicle body in a housing fixed to a vehicle body, and a swing base is rotatably supported on the front-rear rocking body in a left-right direction of the vehicle body. A shift lever device that swings a shift lever implanted in a swing base in the front-rear and left-right directions of a vehicle body to move a gate portion formed on an upper surface of a housing, select a desired range, and switch an automatic transmission. A rotation lock body having a pair of vertically spaced projections provided on the swing base, and having a P engagement portion capable of contacting one of the projections and an N engagement portion capable of being in contact with the other projection. A shift lever rotatably supported by the housing, and an actuator for rotating the rotation lock body when the shift lever is moved to the P range or the N range is fixed to the housing. Shift lock device. 2. A rotation lock body comprising a lever having a P-locking portion and an N-locking portion formed at both ends thereof, wherein a shaft hole serving as a center of rotation is formed at a center portion, and the rotation locking body is provided between the pair of protrusions. The rotatable support is rotatably supported about a shaft hole by a shaft protrusion protruding from the side wall of the housing, and when the rotation lock body is at the unlock position, a pair of protrusions respectively pass above and below the rotation lock body, When the rotation lock body is at the lock position, one of the protrusions abuts on the P lock portion or the N lock portion of the rotation lock body to restrict the shift lever from moving from the P range or the N range. The shift lock device for a shift lever according to claim 1. 3. The rotation lock body has a pair of L-shaped portions formed symmetrically about the shaft hole with respect to a point, and is provided on the back surface of the P-locking portion and the N-locking portion at the ends of the L-shape, respectively. A stopper portion is formed, and a cutout portion having a substantially similar shape to the center of the rotary lock body is formed on a side wall of the housing, and the rotary lock body is rotatably supported in the cutout portion. The shift lock device for a shift lever according to claim 1, wherein the stopper portion can contact the stepped end surface of the cutout portion when the lock lever is at the lock position.